Global Patent Index - EP 1463338 B1

EP 1463338 B1 2009-03-11 - System, method and software for processing a projected image

Title (en)

System, method and software for processing a projected image

Title (de)

System, Verfahren und Software zur Verarbeitung eines projizierten Bildes

Title (fr)

Systeme, procédeéet logiciel de traitement d'une image projetée

Publication

EP 1463338 B1 (EN)

Application

EP 04251651 A

Priority

JP 2003091720 A

Abstract (en)

[origin: EP1463338A2] To provide an image processing system enabling association of the coordinates of a sensed projected image in a sensing area with the coordinates of the spatial light modulator, a projector is formed of: an image projecting section 190 which projects calibration images; a ratio information generating section 152 which computes a ratio of image signal values or luminance values for each pixel in the sensing area obtained by sensing the calibration images, based on sensed information from a sensor 60 which senses the calibration images, to generate ratio information; an edge point detecting section 154 which searches the ratio information to detect edge points of a sensed projected image for each pixel having a ratio equal to or larger than a predetermined value; a pixel block image information generating section 156 which converts sensed information of an area defined by the detected edge points into pixel block image information representing a ratio of image signal values or luminance values for each pixel block including one or more pixels. <IMAGE>

IPC 8 full level

G03B 21/00 (2006.01); H04N 9/31 (2006.01); G03B 21/14 (2006.01); G06K 9/40 (2006.01); G06T 3/00 (2006.01); G06T 5/00 (2006.01); G09G 5/00 (2006.01); G09G 5/02 (2006.01); G09G 5/06 (2006.01); H04N 1/40 (2006.01); H04N 5/74 (2006.01)

CPC

H04N 9/3182 (2013.01); H04N 9/3185 (2013.01)

Designated contracting state (EPC)

DE FR GB

DOCDB simple family

EP 1463338 A2 20040929; EP 1463338 A3 20051026; EP 1463338 B1 20090311; CN 1258287 C 20060531; CN 1535003 A 20041006; DE 602004019831 D1 20090423; JP 2004304265 A 20041028; JP 3690402 B2 20050831; KR 100600913 B1 20060713; KR 20040085005 A 20041007; TW 200425748 A 20041116; TW I238665 B 20050821; US 2004240748 A1 20041202; US 7266240 B2 20070904